In Vivo Cardiac MR Elastography in a Single Breath Hold

Arunark Kolipaka¹, Philip A. Araoz¹, Kiaran P. McGee¹, Armando Manduca¹, Richard L. Ehman¹

Current implementations of cardiac MRE are slow and require multiple breath holds to collect the data required for processing. This work shows an optimized MR elastography (MRE) acquisition strategy capable of obtaining 4 wave images of one polarization of motion in the diastolic and systolic phases of the cardiac cycle, each in one breath hold. The phase-difference SNR and stiffness measurements of the myocardium are comparable in volunteers at end-diastole and end-systole. This technique is also capable of acquiring multiple phases of the cardiac cycle in one breath hold.